"I bought 2 of these, connected them back to back and they look great. I removed the motor and hub from the rear loco and used them to power my Emerald Night. Great value train at £119 when you consider it includes, bt remote £20, bt hub £45 and the new train motor £13. I have mine automated with a colour sensor £13, using the powered up app, great fun changing speed for curves, stopping at stations and blowing the horn near tunnels ... toot toot. Andy."
I have purchased 2 of these from Lego.com and I have fitted one of them to my passenger train 60197, it's in the middle of the loco pointing down at the track, set roughly 5-10mm from the track sleepers. I had to experiment with different colours, red and white were good but yellow was also detected when track went over my laminate flooring. > I use red 4x2 plates on my track in stations stop the train e.g. to load/unload passengers. > I use white 4x2 plates on my track to call sounds and change speed, e.g. horn at tunnel entrance or slow down for a curve
With my room/flooring/lighting, all plates are recognised 100% of the time, at hi and low speed, when using red and white plates. I use studded plates as i think the smooth ones are too reflective/shiny.